Date: July 28th, 2011

Ragweed (Ambrosia) is the source of many runny noses, sneezes and itchy eyes during late summer and early fall. That’s because this plant produces an abundant amount of pollen than triggers severe and widespread allergies. In fact, each plant can produce a billion grains of pollen a season!


 Ragweed CountryMax.com

This invasive weed can be very hard to rid. In fact, the generic name is derived from the word “immortal”. For allergy sufferers, this may seem disheartening but read on for further information to control this weed.




Ragweed has upright, basally branched stems that grow in large clumps to a height of around 2½ to 3 feet. Great Ragweed can grow to 13 feet or more. The plants foliage is grayish to silvery green with yellow-green disc flowers.

Growing Conditions

Ragweeds grow best in dry, sunny grassy plains, sandy soils, river banks, roadsides, and vacant and abandoned fields. Ragweed can be overtaken by turf grasses and other perennial plants.

The plant will release pollen until a frost kills it.


Allergy sufferers, do you want to hear some depressing news? One study found that mechanical and chemical control methods are actually no more effective in the long run than leaving the weed alone!

There are several farmers and dedicated lawn care professionals that disagree with that study, however.

Chemical spraying can be effective in large areas - Roundup will work with multiple applications. Chemical herbicides need to be added in early summer or late spring for control.

Tilling and mowing can work in small areas if the plant is properly disposed of. After tilling or mowing ragweed, always clean equipment before moving on to the next area.



If you have any further questions, email them to AskMax@CountryMax.com, or visit your local CountryMax store today!

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